rear diff fluid
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 876
Likes: 23
From: Prescott Valley, AZ
rear diff fluid
Does anyone know where I can get the Dexron LS 75W90 LS gear oil at a sane price? Just got off the phone with my local dealer and they want $35/qt! Plus they told me I need 4 qts. How much does the rear diff hold?
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
Advanced
Joined: Jan 2011
Posts: 60
Likes: 0
From: Union County New Jersey
Rear end fluid
Does anyone know where I can get the Dexron LS 75W90 LS gear oil at a sane price? Just got off the phone with my local dealer and they want $35/qt! Plus they told me I need 4 qts. How much does the rear diff hold?
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
http://forums.corvetteforum.com/c6-c...s-for-faq.html
I got my Dexron P/N 88862624 from one of the forum vendors (OEM GM Parts). Only needed 2 quarts.
Race Director
Joined: Jan 2011
Posts: 11,973
Likes: 463
From: Tonawanda New York
http://www.southerncarparts.com/corv...nge-ex-43.html
Step by step instructions plus pics!!!
haha,realoldguy beat me to it.
Step by step instructions plus pics!!!
haha,realoldguy beat me to it.
Drifting
Joined: Jul 2011
Posts: 1,825
Likes: 442
From: Boca Raton Florida
Replace it with Royal Purple LS, it is far superior and only $9 per quart. I have it in my 11 GS. Dealer charges $19 for a clutch fluid, I've got the prestone synthetic, twice the amount for $6. Plus it does not get as dirty, stays cleaner longer!...dealers are rip offs!
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Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
The GM Dexron LS 75W90 works very well in my differential. It is the only lubricant that I have found that has permanently eliminated the clutch chatter. Seems like I paid about $19/quart.
Race Director
Joined: Oct 2005
Posts: 14,999
Likes: 200
From: Bay Area Ca.
[QUOTE=mmorse;1578962328]Does anyone know where I can get the Dexron LS 75W90 LS gear oil at a sane price? Just got off the phone with my local dealer and they want $35/qt! Plus they told me I need 4 qts. How much does the rear diff hold?
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.[/QUOTE
^^^^Sounds like typical dealership affair. Screw the unknowing.
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.[/QUOTE
^^^^Sounds like typical dealership affair. Screw the unknowing.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,106
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Does anyone know where I can get the Dexron LS 75W90 LS gear oil at a sane price? Just got off the phone with my local dealer and they want $35/qt! Plus they told me I need 4 qts. How much does the rear diff hold?
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
You might pray the service dept. is more knowledgeable than the parts guys.
Racer
Joined: Sep 2011
Posts: 323
Likes: 0
From: washington washington state
If you drain the 08 overnight[to completely drain clutch packs] you will need to put 2.2 quarts back in to fill! it will begin to run out when level at 2.2-2.3 quarts so I would expect you shopuld get 3 quarts total
Racer
Joined: Sep 2011
Posts: 323
Likes: 0
From: washington washington state
Your '08 is still under the 5yr/100K warranty. So unless you've modded a whole lot of that drivetrain and you don't drive in there with 12" slicks and a parachute hanging off the back, they'll fix that noise for free.
You might pray the service dept. is more knowledgeable than the parts guys.
You might pray the service dept. is more knowledgeable than the parts guys.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,106
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
The OP has significant noise at 40K miles and that's not normal. It's obvious there's an underlying problem that needs corrected, not masked. When they fix the problem, part of the fix includes new fluid.
Melting Slicks
Joined: Sep 2004
Posts: 3,474
Likes: 2,246
From: Southern NJ
I just had my local dealer take care of this exact issue yesterday. Covered under the 5 year/100,000 mile warranty. I mentioned that I read about the issue on this forum, gave them the tsb number and told them it should be covered under the warranty. No argument whatsoever from the service manager. Two quarts and the rear chatter/growl problem solved. (by the way, I checked parts taxi.com and they have dexron for $16/quart.)
Pro
Joined: May 2010
Posts: 507
Likes: 10
From: Wixom Michigan
Does anyone know where I can get the Dexron LS 75W90 LS gear oil at a sane price? Just got off the phone with my local dealer and they want $35/qt! Plus they told me I need 4 qts. How much does the rear diff hold?
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
I have an '08 coupe with Z51 and 40k miles. The rear is making a lot of noise these days.
Any advice/help is appreciated.
As recommended by DTE for my DTE 4:10's.
Drifting
Joined: Jan 2010
Posts: 1,305
Likes: 5
From: Schererville Indiana
Fluid change in the diff is not a scheduled maintenance item. It's not even a requirement to check the level unless there is evidence of leakage. And if the level is low, it only needs fluid added, not changed.
The OP has significant noise at 40K miles and that's not normal. It's obvious there's an underlying problem that needs corrected, not masked. When they fix the problem, part of the fix includes new fluid.
The OP has significant noise at 40K miles and that's not normal. It's obvious there's an underlying problem that needs corrected, not masked. When they fix the problem, part of the fix includes new fluid.
Mine was just an occasional clunk while backing up. I had about 19k miles at the time. They did it for free and changed out the axle nuts while they were at it.
